Hennepin is located in Illinois. Hennepin, Illinois has a population of 710. Hennepin is more family-centric than the surrounding county with 26% households with children. The county percentage for households with children is 22%.
The median household income in Hennepin, Illinois is $65,717. The median household income for the surrounding county is $65,000 compared to the national median of $66,222. The median age of people living in Hennepin is 45.7 years.
The average high temperature in July is 86.13 degrees, with an average low temperature in January of 13.27 degrees. The annual precipitation is 35.28.
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